The correct answer is that the update will trigger other business rules that run on update. This happens because the script uses setValue() to modify a field on the current record, which constitutes an update operation within the ServiceNow platform. When a business rule calls setValue() on the current record, it performs a database write, and by default, that write will fire any other business rules configured to run on the update event—unless the rule is explicitly set to run asynchronously or has the "Don't run other business rules" checkbox selected. On the ServiceNow Certified Application Developer CAD exam, this scenario tests your understanding of business rule execution order and the cascading effect of field updates. A common trap is assuming that setValue() only changes the field in memory without triggering additional rules, but in reality, it persists the change and propagates the update. Remember the memory tip: "setValue sets off a chain reaction—every update fires unless you lock the door."
SNOW-CAD Practice Question: Automating application logic with business rules and scripts
This SNOW-CAD practice question tests your understanding of automating application logic with business rules and scripts. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
var gr = new GlideRecord('incident');
gr.get('681ccaf9c0a8016400bf7952c6d0a7ef');
gr.setValue('short_description', 'Test update');
gr.update();
Refer to the exhibit. The script runs as a business rule on the incident table. What will happen when this script executes?
Refer to the exhibit.
var gr = new GlideRecord('incident');
gr.get('681ccaf9c0a8016400bf7952c6d0a7ef');
gr.setValue('short_description', 'Test update');
gr.update();
A
The update will only occur if the business rule condition evaluates to true.
Why wrong: The update() method does not re-evaluate the business rule's condition; it performs the database update.
B
The update will trigger other business rules that run on update.
When update() is called, it triggers all business rules set to run on update for that table.
C
The record will be updated without triggering any other business rules.
Why wrong: update() always triggers business rules; to suppress them, use setWorkflow(false).
D
The script will throw an error because setValue() requires a third parameter.
Why wrong: setValue() only requires two parameters: field name and value.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The update will trigger other business rules that run on update.
Option B is correct because the script uses `setValue()` to update a field on the current record, which is an update operation. In ServiceNow, business rules that run on 'update' will fire when a record is updated, unless the business rule is specifically configured to run 'asynchronously' or with the 'Don't run other business rules' option. Since the exhibit does not show such configuration, the update will trigger other business rules that run on update.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The update will only occur if the business rule condition evaluates to true.
Why it's wrong here
The update() method does not re-evaluate the business rule's condition; it performs the database update.
✓
The update will trigger other business rules that run on update.
Why this is correct
When update() is called, it triggers all business rules set to run on update for that table.
Related concept
Read the scenario before looking for a memorised answer.
✗
The record will be updated without triggering any other business rules.
Why it's wrong here
update() always triggers business rules; to suppress them, use setWorkflow(false).
✗
The script will throw an error because setValue() requires a third parameter.
Why it's wrong here
setValue() only requires two parameters: field name and value.
Common exam traps
Common exam trap: answer the scenario, not the keyword
ServiceNow often tests the misconception that `setValue()` in a business rule will not trigger other business rules, but the default behavior is that it does, unless the 'Don't run other business rules' checkbox is explicitly selected.
Detailed technical explanation
How to think about this question
Under the hood, ServiceNow uses a business rule execution order: before, after, and async. When a business rule runs an update via `setValue()`, it creates a database write operation that triggers all 'after' business rules on the same table that are configured to run on update. A common real-world scenario is using a business rule to set a 'state' field to 'closed' when a condition is met, which then triggers a separate business rule that sends an email notification or updates a related record.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the SNOW-CAD exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Automating application logic with business rules and scripts — This question tests Automating application logic with business rules and scripts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The update will trigger other business rules that run on update. — Option B is correct because the script uses `setValue()` to update a field on the current record, which is an update operation. In ServiceNow, business rules that run on 'update' will fire when a record is updated, unless the business rule is specifically configured to run 'asynchronously' or with the 'Don't run other business rules' option. Since the exhibit does not show such configuration, the update will trigger other business rules that run on update.
What should I do if I get this SNOW-CAD question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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